[Event "NED Team-ch 1930/31"]
[Site "Netherlands"]
[Date "1931.02.01"]
[Round "4.8"]
[White "Groen, Sylvain Izaak"]
[Black "Hamming, Adolf Willem"]
[Result "1-0"]
[ECO "C10"]
[PlyCount "100"]
[EventDate "1930.11.09"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "The Hague DD"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e6 2. d4 d5 3. Nc3 c5 4. e5 Nc6 5. f4 Nxd4 6. Bd3 Ne7 7. Be3 Nec6 8. Qd2 Qa5 9. 0-0-0 Nb4 10. Bxd4 cxd4 11. Bb5+ Bd7 12. Bxd7+ Kxd7 13. Qxd4 Nxa2+ 14. Nxa2 Qxa2 15. Ne2 Qa1+ 16. Kd2 Qa5+ 17. c3 Bc5 18. Qd3 Qc7 19. Rhf1 Ke7 20. Qg3 g6 21. Qg5+ Kd7 22. Kc2 a5 23. g4 Be7 24. Qh6 a4 25. Nd4 a3 26. b3 Rhc8 27. Qh3 Qa5 28. Rd3 b5 29. f5 b4 30. fxe6+ fxe6 31. Nxe6 a2 32. g5 Rxc3+ 33. Rxc3 bxc3 34. Nc5+ Kc6 35. Na4 Qb4 36. Qe6+ Kc7 37. Nxc3 Ra5 38. Nxd5+ Rxd5 39. Qxd5 Qg4 40. Qa5+ Kc6 41. Qa6+ Kc7 42. Qa7+ Kc8 43. Qa8+ Kc7 44. Qa7+ Kc8 45. Qa8+ Kc7 46. Qa5+ Kc8 47. Qc3+ Kb7 48. Qd3 Qg2+ 49. Kc3 Qxg5 50. Qd7+ Kb6 1-0

[Event "NED Team-ch 1929/30"]
[Site "Netherlands"]
[Date "1929.12.08"]
[Round "2.6"]
[White "Groen, Sylvain Izaak"]
[Black "Snoeck Henkemans, G."]
[Result "1/2-1/2"]
[ECO "B03"]
[PlyCount "54"]
[EventDate "1929.11.03"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "The Hague DD"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. exd6 exd6 5. c4 Nf6 6. Bd3 Be7 7. Ne2 Nbd7 8. Nbc3 c6 9. 0-0 0-0 10. Ng3 Re8 11. Nf5 Nf8 12. Nxe7+ Qxe7 13. Bg5 h6 14. Bh4 Ng6 15. Bg3 Bg4 16. Qd2 Qd7 17. Qc2 d5 18. c5 Bh5 19. Bf5 Qd8 20. Rae1 Ne7 21. Bh4 g5 22. Bg3 Bg6 23. Bxg6 Nxg6 24. Qf5 Nh5 25. Ne2 Qc8 26. Qf3 Ng7 27. Bd6 Nh4 1/2-1/2

[Event "NED Team-ch 1929/30"]
[Site "Netherlands"]
[Date "1929.11.17"]
[Round "1.6"]
[White "Groen, Sylvain Izaak"]
[Black "Oudegeest, HC."]
[Result "1-0"]
[ECO "B74"]
[PlyCount "35"]
[EventDate "1929.11.03"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "Utrecht"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 d6 8. 0-0 0-0 9. Kh1 a6 10. f4 Bd7 11. Bf3 Rc8 12. Nb3 Qc7 13. Na4 Rce8 14. Nb6 Nd8 15. e5 dxe5 16. fxe5 Qxe5 17. Bd4 Qd6 18. Bxf6 1-0

[Event "NED Team-ch 1928/29"]
[Site "Netherlands"]
[Date "1928.12.02"]
[Round "2.5"]
[White "Van Foreest, Arnold E"]
[Black "Groen, Sylvain Izaak"]
[Result "1-0"]
[ECO "B26"]
[PlyCount "117"]
[EventDate "1928.11.04"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Rotterdam NRSV"]
[BlackTeam "Amsterdam VAS"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 Nf6 7. Be3 Bd7 8. Qd2 Qc8 9. Bh6 0-0 10. Bxg7 Kxg7 11. Nd5 Nxd5 12. exd5 Nd4 13. 0-0 Bh3 14. Nxd4 Bxg2 15. Kxg2 cxd4 16. Qb4 Qc5 17. Qxc5 dxc5 18. c4 Kf6 19. Rfe1 Rfe8 20. b4 cxb4 21. Re4 e5 22. dxe6 Rxe6 23. Rxd4 Ke7 24. Rb1 a5 25. a3 bxa3 26. Rxb7+ Kf8 27. Rb3 a2 28. Ra3 Re2 29. Rd5 Rb8 30. Rb5 Rxb5 31. cxb5 Rb2 32. Rxa5 Ke7 33. Ra6 Rd2 34. d4 Rxd4 35. Rxa2 Rb4 36. Ra7+ Ke6 37. Rb7 h5 38. b6 Kd5 39. Rxf7 Rxb6 40. Re7 Rb4 41. Kf3 h4 42. Rg7 hxg3 43. hxg3 Rb6 44. Kf4 Rf6+ 45. Kg5 Rxf2 46. Rxg6 Ke5 47. g4 Rh2 48. Rg8 Rh1 49. Re8+ Kd5 50. Kg6 Rg1 51. g5 Kd6 52. Kf6 Rf1+ 53. Kg7 Rg1 54. g6 Rf1 55. Re2 Kd7 56. Kg8 Rg1 57. g7 Rh1 58. Re5 Rh2 59. Kf7 1-0

[Event "NED Team-ch 1927/28"]
[Site "Netherlands"]
[Date "1928.02.12"]
[Round "4.6"]
[White "Van Vollenhoven, S."]
[Black "Groen, Sylvain Izaak"]
[Result "0-1"]
[ECO "D45"]
[PlyCount "84"]
[EventDate "1927.11.06"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Utrecht"]
[BlackTeam "Amsterdam VAS"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. d4 d5 2. Nf3 Nf6 3. c4 c6 4. e3 e6 5. Nc3 Bb4 6. cxd5 cxd5 7. Qa4+ Nc6 8. Ne5 Qa5 9. Qxa5 Nxa5 10. Bb5+ Bd7 11. Nxd7 Nxd7 12. 0-0 Rc8 13. Na4 Ke7 14. Bxd7 Kxd7 15. Nc5+ Ke7 16. Nd3 Bd6 17. Bd2 Nc4 18. Bc3 Rc7 19. Rfc1 Rhc8 20. g3 b6 21. Kg2 Kd7 22. Rd1 f6 23. h3 Be7 24. Nf4 Nd6 25. f3 Nc4 26. Kf2 Nxb2 27. Bxb2 Rc2+ 28. Kf1 Rxb2 29. Re1 Rd2 30. Re2 Rcc2 31. Rxd2 Rxd2 32. a3 g5 33. Ne2 Rd3 34. Kf2 Rxa3 35. Rc1 Ra4 36. Rc2 Rc4 37. Ra2 a5 38. f4 a4 39. Kf3 b5 40. e4 a3 41. exd5 exd5 42. fxg5 fxg5 0-1

[Event "NED Team-ch 1927/28"]
[Site "Netherlands"]
[Date "1927.12.04"]
[Round "2.6"]
[White "Groen, Sylvain Izaak"]
[Black "Wertheim, Johan Hendrik"]
[Result "1/2-1/2"]
[ECO "C84"]
[PlyCount "98"]
[EventDate "1927.11.06"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "The Hague DD"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Nc3 b5 7. Bb3 d6 8. Re1 Bg4 9. Ne2 Qd7 10. d3 Bd8 11. c3 Ne7 12. d4 Bxf3 13. gxf3 Qh3 14. Ng3 Ng6 15. Nf5 Nh5 16. Kh1 Bf6 17. Be3 0-0 18. Rg1 exd4 19. cxd4 c5 20. Bg5 Bxd4 21. Nxd4 cxd4 22. Rg4 Ne5 23. Rh4 Qxf3+ 24. Qxf3 Nxf3 25. Rxh5 g6 26. Kg2 gxh5 27. Kxf3 Rfc8 28. Be7 h6 29. Rg1+ Kh7 30. Bxf7 Rf8 31. Bxf8 Rxf8 32. Rd1 Rxf7+ 33. Kg2 Rc7 34. Rxd4 Rc2 35. Rxd6 a5 36. Rb6 Rxb2 37. Kg3 b4 38. f4 a4 39. e5 a3 40. e6 Rxa2 41. Kf3 Kg7 42. Rb7+ Kf8 43. f5 Rc2 44. f6 Rc8 45. Rh7 Kg8 46. f7+ Kxh7 47. e7 a2 48. e8Q Rxe8 49. fxe8Q a1Q 1/2-1/2

[Event "NED Team-ch 1926/27"]
[Site "Netherlands"]
[Date "1927.01.16"]
[Round "3.10"]
[White "Groen, Sylvain Izaak"]
[Black "Schwencke, George Willem"]
[Result "1-0"]
[ECO "B45"]
[PlyCount "43"]
[EventDate "1926.11.07"]
[EventType "team"]
[EventRounds "5"]
[EventCountry "NED"]
[SourceTitle "EXT 2013"]
[Source "ChessBase"]
[SourceDate "2012.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2012.11.22"]
[SourceQuality "1"]
[WhiteTeam "Amsterdam VAS"]
[BlackTeam "The Hague DD"]
[WhiteTeamCountry "NED"]
[BlackTeamCountry "NED"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e6 5. Nc3 Nf6 6. Nxc6 bxc6 7. e5 Ng8 8. Bd3 Qa5 9. Qe2 Ne7 10. 0-0 Ng6 11. f4 Be7 12. Bd2 0-0 13. Kh1 Qc7 14. Ne4 d5 15. exd6 Bxd6 16. Qh5 Be7 17. Rf3 h6 18. Ng5 Bxg5 19. fxg5 Kh7 20. gxh6 Rh8 21. Bf4 Qe7 22. Bg5 1-0

[Event "Scarborough-01 Premier B"]
[Site "Scarborough/ North Yorkshire"]
[Date "1925.06.04"]
[Round "5"]
[White "Dawbarn, Climenson Yelverton"]
[Black "Groen, Sylvain Izaak"]
[Result "0-1"]
[ECO "B83"]
[PlyCount "87"]
[EventDate "1925.05.30"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e6 7. 0-0 Be7 8. Be3 0-0 9. Qd2 a6 10. Rad1 Qc7 11. f4 Rd8 12. Bf3 Ne5 13. Qe2 Nxf3+ 14. Nxf3 b5 15. a3 Bb7 16. Bc1 Rd7 17. e5 Nd5 18. Ne4 Rc8 19. c3 Rcd8 20. Kh1 Nb6 21. exd6 Bxd6 22. Nxd6 Rxd6 23. Nd4 Bd5 24. Qg4 Nd7 25. Rde1 Nf6 26. Qh4 Qb7 27. Nf3 Bc4 28. Rg1 Bd5 29. Rgf1 Be4 30. Be3 Rd3 31. Qh3 Bxf3 32. Rxf3 Rd1 33. Qh4 Rxe1+ 34. Qxe1 Rd3 35. Rf1 Qd5 36. Bd4 Ne4 37. Qe2 Rd2 38. Qg4 f6 39. b4 Rd3 40. Qe2 Rd2 41. Qe3 Kf7 42. Re1 Nf2+ 43. Kg1 Ra2 44. Re2 0-1

[Event "Scarborough-01 Premier B"]
[Site "Scarborough/ North Yorkshire"]
[Date "1925.06.03"]
[Round "4"]
[White "Groen, Sylvain Izaak"]
[Black "Atkinson, Walter"]
[Result "1-0"]
[ECO "C55"]
[PlyCount "113"]
[EventDate "1925.05.30"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. 0-0 Nxe4 5. d4 d5 6. Bb5 Bg4 7. Re1 Be7 8. h3 Bxf3 9. gxf3 Nd6 10. Bxc6+ bxc6 11. dxe5 Nf5 12. Nc3 Qd7 13. Kh2 Bc5 14. Bf4 Bxf2 15. Re2 Bb6 16. Qd3 Qe6 17. Rg2 h6 18. Re1 g5 19. Bd2 0-0-0 20. Na4 c5 21. Qa6+ Kb8 22. Qb5 Nd4 23. Qf1 Qf5 24. Nxb6 cxb6 25. f4 gxf4 26. Bxf4 Ne6 27. Rf2 Qh5 28. Bg3 Rh7 29. Re3 c4 30. Ref3 Rd7 31. c3 Qg6 32. Rf6 Qg7 33. Rg2 Qh8 34. Rgf2 Qe8 35. Qb1 Qg8 36. Rg2 Rg7 37. Rxh6 Nf4 38. e6 Kb7 39. exd7 Nxg2 40. Rd6 Qd8 41. Kxg2 Rxg3+ 42. Kxg3 Qg5+ 43. Kf3 Qh5+ 44. Kf2 Qh4+ 45. Kg2 Qg5+ 46. Kh1 Qg3 47. Qf1 Qxd6 48. Qxf7 Kc7 49. Qe8 Qxd7 50. Qxd7+ Kxd7 51. Kg2 Ke6 52. Kf3 b5 53. Ke3 Ke5 54. h4 b4 55. cxb4 d4+ 56. Kd2 Kf4 57. a4 1-0

[Event "Scarborough-01 Premier B"]
[Site "Scarborough/ North Yorkshire"]
[Date "1925.06.02"]
[Round "3"]
[White "Groen, Sylvain Izaak"]
[Black "Wenman, Francis Percival"]
[Result "0-1"]
[ECO "C90"]
[PlyCount "94"]
[EventDate "1925.05.30"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. Nbd2 0-0 12. Nf1 Bg4 13. d5 Nb7 14. Ng3 g6 15. Bh6 Rfb8 16. h3 Bd7 17. Bg5 Qd8 18. Qd2 Ne8 19. Bh6 Bf6 20. Rf1 Qe7 21. Ng5 Bg7 22. Bxg7 Nxg7 23. f4 f6 24. Nf3 exf4 25. Qxf4 Rf8 26. Rf2 Nd8 27. Raf1 Nf7 28. Qd2 Rae8 29. Nh2 Ne5 30. b3 Rf7 31. Rf4 g5 32. R4f2 Ng6 33. Nf5 Nxf5 34. exf5 Nf4 35. Ng4 Qf8 36. Re1 Rxe1+ 37. Qxe1 Nxd5 38. Rd2 Re7 39. Qa1 Ne3 40. Nxe3 Rxe3 41. c4 Qe7 42. Kh2 Bc6 43. Qb2 b4 44. Bd1 Qe4 45. Bf3 Qf4+ 46. Kg1 Bxf3 47. gxf3 Qg3+ 0-1

[Event "Scarborough-01 Premier B"]
[Site "Scarborough/ North Yorkshire"]
[Date "1925.06.01"]
[Round "2"]
[White "Gibson, William"]
[Black "Groen, Sylvain Izaak"]
[Result "0-1"]
[ECO "D00"]
[PlyCount "86"]
[EventDate "1925.05.30"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. d4 Nf6 2. Nf3 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 0-0 6. Bd3 c5 7. dxc5 Nh5 8. Be5 Bxe5 9. Nxe5 Qc7 10. f4 Qxc5 11. Qf3 Nf6 12. 0-0 Nc6 13. Rae1 a6 14. Kh1 Qd6 15. Nxc6 Qxc6 16. h3 Bd7 17. e4 dxe4 18. Nxe4 Rab8 19. Qg3 Nxe4 20. Rxe4 e6 21. Re5 Qb6 22. b3 Rbc8 23. h4 Be8 24. h5 f6 25. hxg6 fxe5 26. g7 Rf5 27. Bxf5 exf5 28. fxe5 Rc6 29. Rf2 Qd4 30. Qf3 Qa1+ 31. Rf1 Qxe5 32. Qxf5 Qxf5 33. Rxf5 Kxg7 34. c4 Re6 35. Rf2 Bg6 36. Rd2 Be4 37. Kg1 Bc6 38. Kf2 Kf6 39. Rd3 Ke5 40. g3 Rh6 41. a3 Rh2+ 42. Ke1 Rg2 43. Kf1 Ke4 0-1

[Event "Scarborough-01 Premier B"]
[Site "Scarborough/ North Yorkshire"]
[Date "1925.05.30"]
[Round "1"]
[White "Groen, Sylvain Izaak"]
[Black "Kahn, Victor"]
[Result "0-1"]
[ECO "C90"]
[PlyCount "68"]
[EventDate "1925.05.30"]
[EventType "tourn"]
[EventRounds "5"]
[EventCountry "ENG"]
[SourceTitle "EXT 2001"]
[Source "ChessBase"]
[SourceDate "2000.11.22"]
[SourceVersion "1"]
[SourceVersionDate "2000.11.22"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Be7 6. Re1 b5 7. Bb3 d6 8. c3 Na5 9. Bc2 c5 10. d4 Qc7 11. Nbd2 Nc6 12. d5 Nd8 13. Nf1 0-0 14. Ng3 Ne8 15. Bd2 g6 16. Bh6 Ng7 17. Qd2 f6 18. Bxg7 Kxg7 19. h3 Nf7 20. Re2 Bd7 21. Nh2 Rg8 22. Rf1 Raf8 23. Ree1 Qc8 24. Qd1 Kh8 25. f4 exf4 26. Rxf4 Ne5 27. Ref1 f5 28. exf5 Bg5 29. Re4 gxf5 30. Ree1 Bh4 31. Rxe5 dxe5 32. Nh5 Qe8 33. Qe2 Rg5 34. g4 Qxh5 0-1

[Event "British CF-16 Major Open"]
[Site "Portsmouth (Southsea)"]
[Date "1923.08.22"]
[Round "9"]
[White "Groen, Sylvain Izaak"]
[Black "Jesty, Edmund Tom"]
[Result "0-1"]
[ECO "C83"]
[PlyCount "72"]
[EventDate "1923.08.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Be7 10. Nbd2 0-0 11. Bc2 Nc5 12. Nd4 Nxd4 13. cxd4 Nb7 14. f4 f5 15. Nf3 c5 16. Kh1 c4 17. a3 a5 18. Bd2 Qb6 19. Qe1 Nd8 20. Ng5 Bxg5 21. fxg5 Qxd4 22. Bxa5 Qxb2 23. Qd2 Rxa5 24. Rfb1 Rxa3 25. Rxb2 Rxa1+ 26. Bb1 Nc6 27. Rxb5 d4 28. h3 c3 29. Qd3 Na5 30. Qc2 Nc4 31. Qd3 Na3 32. Kh2 Nxb5 33. Qxb5 Rxb1 34. Qxb1 Rc8 35. Qc2 d3 36. Qd1 c2 0-1

[Event "British CF-16 Major Open"]
[Site "Portsmouth (Southsea)"]
[Date "1923.08.17"]
[Round "5"]
[White "Groen, Sylvain Izaak"]
[Black "Alekhine, Alexander"]
[Result "0-1"]
[ECO "C78"]
[PlyCount "20"]
[EventDate "1923.08.13"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 2017"]
[Source "ChessBase"]
[SourceDate "2016.10.25"]
[SourceVersion "1"]
[SourceVersionDate "2016.10.25"]
[SourceQuality "1"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. 0-0 Bc5 6. Nxe5 Nxe5 7. d4 Nxe4 8. dxc5 Nxc5 9. Qd4 Qe7 10. Bf4 f6 0-1

[Event "Victory Congress First Class-B"]
[Site "Hastings"]
[Date "1919.??.??"]
[Round "?"]
[White "Chambers, John Dillon"]
[Black "Groen, Sylvain Izaak"]
[Result "0-1"]
[ECO "D05"]
[PlyCount "92"]
[EventDate "1919.08.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. e3 e6 4. Nbd2 Nf6 5. Be2 Nc6 6. c3 Bd7 7. a3 c4 8. Qc2 Na5 9. e4 dxe4 10. Nxe4 Nxe4 11. Qxe4 Nb3 12. Rb1 Bc6 13. Qe3 b5 14. 0-0 Be7 15. Ne5 Bd5 16. f4 0-0 17. Bf3 a5 18. Nc6 Bxc6 19. Bxc6 Rb8 20. Qf2 Qc7 21. Be4 b4 22. axb4 axb4 23. Be3 bxc3 24. bxc3 Rb5 25. Qc2 g6 26. Qd1 Rfb8 27. Bc2 Qa5 28. Bd2 Bd8 29. Bxb3 Rxb3 30. Ra1 Qb5 31. Qf3 Ba5 32. h3 Rd8 33. Qe3 Qd5 34. Qe1 Rdb8 35. Kh1 Rb2 36. Qe3 R8b5 37. Rfc1 Bc7 38. Kh2 Qf5 39. Rf1 Rc2 40. Rf2 Qd3 41. g3 Qxe3 42. Bxe3 Rxc3 43. Re2 Rd3 44. Kg2 Bb6 45. Kf2 Bxd4 46. Bxd4 Rxd4 0-1

[Event "Victory Congress First Class-B"]
[Site "Hastings"]
[Date "1919.??.??"]
[Round "?"]
[White "Gooding, William"]
[Black "Groen, Sylvain Izaak"]
[Result "0-1"]
[ECO "D40"]
[PlyCount "70"]
[EventDate "1919.08.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. d4 d5 2. Nf3 c5 3. c4 e6 4. e3 Nf6 5. Nc3 Nc6 6. a3 cxd4 7. exd4 Be7 8. Bd3 dxc4 9. Bxc4 0-0 10. 0-0 a6 11. Be3 b5 12. Bd3 Bb7 13. b4 Rc8 14. Rc1 Bd6 15. Qe2 Ne7 16. Rfe1 Ned5 17. Nxd5 Bxd5 18. Ne5 Ne4 19. f3 Nf6 20. Rxc8 Qxc8 21. Rc1 Qb7 22. Qc2 g6 23. Bh6 Re8 24. Bg5 Nd7 25. f4 Nb6 26. Ng4 Rc8 27. Nf6+ Kg7 28. Qd1 h6 29. Rxc8 Qxc8 30. Bh4 Bxf4 31. Bc2 Nc4 32. Nxd5 exd5 33. Qf3 Be3+ 34. Bf2 Bxf2+ 35. Qxf2 Nxa3 0-1

[Event "Victory Congress First Class-B"]
[Site "Hastings"]
[Date "1919.??.??"]
[Round "?"]
[White "Hammond, Cecil Perfect"]
[Black "Groen, Sylvain Izaak"]
[Result "1-0"]
[ECO "C21"]
[PlyCount "67"]
[EventDate "1919.08.11"]
[EventType "tourn"]
[EventRounds "11"]
[EventCountry "ENG"]
[SourceTitle "EXT 1999"]
[Source "ChessBase"]
[SourceDate "1998.11.16"]
[SourceVersion "1"]
[SourceVersionDate "1998.11.16"]
[SourceQuality "1"]

1. e4 e5 2. d4 exd4 3. c3 dxc3 4. Bc4 d5 5. exd5 Nf6 6. Nxc3 Bd6 7. Nf3 0-0 8. 0-0 Bg4 9. Bg5 Re8 10. Qd4 Bxf3 11. gxf3 Nbd7 12. Kh1 Ne5 13. Be2 Ng6 14. Bb5 Be5 15. Qd2 Re7 16. Rad1 Qc8 17. Ne2 Qh3 18. Ng3 h6 19. Bxf6 gxf6 20. Rg1 Kh7 21. Bd3 Rg8 22. Qb4 Rge8 23. Bf5 Bd6 24. Qd4 Be5 25. Qxe5 Qxh2+ 26. Kxh2 Rxe5 27. Be4 Kh8 28. Nf5 Nf4 29. Rg4 Ng6 30. Kg3 h5 31. Rh1 h4+ 32. Nxh4 Kg7 33. Nxg6 fxg6 34. Rxg6+ 1-0

